10-68960194-C-T

Position:

chr10-68960194-C-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_004728.4(DDX21):c.476C>T(p.Pro159Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000726 in 1,611,864 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000070 ( 0 hom. )

Consequence

DDX21
NM_004728.4 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.124

Variant links:

Genes affected

DDX21 (HGNC:2744): (DExD-box helicase 21) DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein, which is an antigen recognized by autoimmune antibodies from a patient with watermelon stomach disease. This protein unwinds double-stranded RNA, folds single-stranded RNA, and may play important roles in ribosomal RNA biogenesis, RNA editing, RNA transport, and general transcription. [provided by RefSeq, Jul 2008]

DDX21 links:

DDX21 (HGNC:):

DDX21 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.020151436).

BP6

Variant 10-68960194-C-T is Benign according to our data. Variant chr10-68960194-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2403400.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAd4 at 15 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DDX21	NM_004728.4 linkuse as main transcript	c.476C>T	p.Pro159Leu	missense_variant	2/15	ENST00000354185.9	NP_004719.2	Q9NR30-1
DDX21	NM_001410932.1 linkuse as main transcript	c.476C>T	p.Pro159Leu	missense_variant	2/14		NP_001397861.1
DDX21	NM_001256910.2 linkuse as main transcript	c.272C>T	p.Pro91Leu	missense_variant	2/15		NP_001243839.1	Q9NR30-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DDX21	ENST00000354185.9 linkuse as main transcript	c.476C>T	p.Pro159Leu	missense_variant	2/15	1	NM_004728.4	ENSP00000346120.4		Q9NR30-1

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000101

AC:

AN:

247834

Hom.:

AF XY:

0.0000968

AC XY:

AN XY:

134328

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000326

Gnomad ASJ exome

AF:

0.000101

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000668

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000622

Gnomad OTH exome

AF:

0.000661

GnomAD4 exome

AF:

0.0000699

AC:

102

AN:

1459576

Hom.:

Cov.:

AF XY:

0.0000689

AC XY:

AN XY:

726132

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000409

Gnomad4 ASJ exome

AF:

0.0000384

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000233

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000684

Gnomad4 OTH exome

AF:

0.0000829

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152288

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74460

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000731

Hom.:

Bravo

AF:

0.000128

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000107

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 09, 2021

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.57

BayesDel_noAF

Benign

-0.73

CADD

Benign

DANN

Benign

0.24

DEOGEN2

Benign

0.14

T;.

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.39

T;T

M_CAP

Benign

0.0037

MetaRNN

Benign

0.020

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

L;.

PrimateAI

Benign

0.23

PROVEAN

Benign

-0.90

N;.

REVEL

Benign

0.087

Sift

Benign

0.45

T;.

Sift4G

Benign

0.32

T;T

Polyphen

0.0010

B;.

Vest4

0.051

MVP

0.18

MPC

0.079

ClinPred

0.015

GERP RS

0.80

RBP_binding_hub_radar

1.0

RBP_regulation_power_radar

2.1

Varity_R

0.11

gMVP

0.20

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over